Several users in a system I inherited have their group set to 0 in /etc/passwd. What does that mean? Do they essentially get full root privileges?
The system is running CentOS 5, and the users appear to be primarily system-related things, although a former administrator is also in that group:
$ grep :0: /etc/passwd root:x:0:0:root:/root:/bin/bash sync:x:5:0:sync:/sbin:/bin/sync shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown halt:x:7:0:halt:/sbin:/sbin/halt operator:x:11:0:operator:/root:/sbin/nologin jsmith:x:500:0:Joe Smith:/home/jsmith:/bin/bash $